<?php

class HTMLDisplayHandler {
	/**
	 * Produce HTML compliant content given a module object.\n
	 * @param ModuleObject $oModule the module object
	 * @return string compiled template string
	 **/
	function toDoc(&$oModule)
	{
		$oTemplate = &TemplateHandler::getInstance();

		// compile module tpl
		if ($oModule->module_info->module == $oModule->module)
			$skin = $oModule->origin_module_info->skin;
		else
			$skin = $oModule->module_config->skin;

		if(Context::get('module')!='admin' && strpos(Context::get('act'),'Admin') === false){
			if ($skin && is_string($skin)){
				$theme_skin = explode('.', $skin);
				$template_path = $oModule->getTemplatePath();
				if (count($theme_skin) == 2) {
					$theme_path = sprintf('./themes/%s',$theme_skin[0]);
					if(substr($theme_path,0,strlen($theme_path)) != $theme_path)
						$template_path = sprintf('%s/modules/%s/', $theme_path, $theme_skin[1]);
				}	
			}else{
				$template_path = $oModule->getTemplatePath();
			}
		}else $template_path = $oModule->getTemplatePath();
		$tpl_file = $oModule->getTemplateFile();

		$output = $oTemplate->compile($template_path, $tpl_file);

		// add .x div for adminitration pages
		if(Context::getResponseMethod() == 'HTML') {
			if(Context::get('module')!='admin' && strpos(Context::get('act'),'Admin')>0) $output = '<div class="x">'.$output.'</div>';
			
			if(Context::get('layout') != 'none') {
				if(__DEBUG__==3) $start = getMicroTime();

				Context::set('content', $output, false);

				$layout_path = $oModule->getLayoutPath();
				$layout_file = $oModule->getLayoutFile();

				$edited_layout_file = $oModule->getEditedLayoutFile();

				// get the layout information currently requested
				$oLayoutModel = &getModel('layout');
				$layout_info = Context::get('layout_info');
				$layout_srl = $layout_info->layout_srl;

				// compile if connected to the layout
				if($layout_srl > 0){

					// handle separately if the layout is faceoff
					if($layout_info && $layout_info->type == 'faceoff') {
						$oLayoutModel->doActivateFaceOff($layout_info);
						Context::set('layout_info', $layout_info);
					}

					// search if the changes CSS exists in the admin layout edit window
					$edited_layout_css = $oLayoutModel->getUserLayoutCss($layout_srl);

					if(file_exists($edited_layout_css)) Context::loadFile(array($edited_layout_css,'all','',100));
				}
				if(!$layout_path) $layout_path = './common/tpl';
				if(!$layout_file) $layout_file = 'default_layout';
				$output = $oTemplate->compile($layout_path, $layout_file, $edited_layout_file);

				if(__DEBUG__==3) $GLOBALS['__layout_compile_elapsed__'] = getMicroTime()-$start;

				if(preg_match('/MSIE/i',$_SERVER['HTTP_USER_AGENT']) && (Context::get('_use_ssl') == 'optional' || Context::get('_use_ssl') == 'always')) {
					Context::addHtmlFooter('<iframe id="xeTmpIframe" name="xeTmpIframe" style="width:1px;height:1px;position:absolute;top:-2px;left:-2px;"></iframe>');
				}
			}
		}
		return $output;
	}

	/**
	 * when display mode is HTML, prepare code before print.
	 * @param string $output compiled template string
	 * @return void
	 **/
	function prepareToPrint(&$output) {
		if(Context::getResponseMethod() != 'HTML') return;

		if(__DEBUG__==3) $start = getMicroTime();

		// move <style ..></style> in body to the header
		$output = preg_replace_callback('!<style(.*?)<\/style>!is', array($this,'_moveStyleToHeader'), $output);

		// move <meta ../> in body to the header
		$output = preg_replace_callback('!<meta(.*?)(?:\/|)>!is', array($this,'_moveMetaToHeader'), $output);

		// change a meta fine(widget often put the tag like <!--Meta:path--> to the content because of caching)
		$output = preg_replace_callback('/<!--(#)?Meta:([a-z0-9\_\/\.\@]+)-->/is', array($this,'_transMeta'), $output);

		// handles a relative path generated by using the rewrite module
		if(Context::isAllowRewrite()) {
			$url = parse_url(Context::getRequestUri());
			$real_path = $url['path'];

			$pattern = '/src=("|\'){1}(\.\/)?(files\/attach|files\/cache|files\/faceOff|files\/member_extra_info|modules|common|widgets|widgetstyle|layouts|addons)\/([^"\']+)\.(jpg|jpeg|png|gif)("|\'){1}/s';
			$output = preg_replace($pattern, 'src=$1'.$real_path.'$3/$4.$5$6', $output);

			$pattern = '/href=("|\'){1}(\?[^"\']+)/s';
			$output = preg_replace($pattern, 'href=$1'.$real_path.'$2', $output);

			if(Context::get('vid')) {
				$pattern = '/\/'.Context::get('vid').'\?([^=]+)=/is';
				$output = preg_replace($pattern, '/?$1=', $output);
			}
		}

		// prevent the 2nd request due to url(none) of the background-image
		$output = preg_replace('/url\((["\']?)none(["\']?)\)/is', 'none', $output);

		if(is_array(Context::get('INPUT_ERROR')))
		{
			$INPUT_ERROR = Context::get('INPUT_ERROR');
			$keys = array_keys($INPUT_ERROR);
			$keys = '('.implode('|', $keys).')';

			$output = preg_replace_callback('@(<input)([^>]*?)\sname="'.$keys.'"([^>]*?)/?>@is', array(&$this, '_preserveValue'), $output);
			$output = preg_replace_callback('@<select[^>]*\sname="'.$keys.'".+</select>@isU', array(&$this, '_preserveSelectValue'), $output);
			$output = preg_replace_callback('@<textarea[^>]*\sname="'.$keys.'".+</textarea>@isU', array(&$this, '_preserveTextAreaValue'), $output);
		}

		if(__DEBUG__==3) $GLOBALS['__trans_content_elapsed__'] = getMicroTime()-$start;

		// Remove unnecessary information
		$output = preg_replace('/member\_\-([0-9]+)/s','member_0',$output);

		// set icon
		$oAdminModel = &getAdminModel('admin');
		$favicon_url = $oAdminModel->getFaviconUrl();
		$mobicon_url = $oAdminModel->getMobileIconUrl();
		Context::set('favicon_url', $favicon_url);
		Context::set('mobicon_url', $mobicon_url);

		// convert the final layout
		Context::set('content', $output);
		$oTemplate = &TemplateHandler::getInstance();
		if(Mobile::isFromMobilePhone()) {
			$output = $oTemplate->compile('./common/tpl', 'mobile_layout');
		}
		else
		{
			$this->_loadJSCSS();
			$this->_addMetaTag();
			$output = $oTemplate->compile('./common/tpl', 'common_layout');
		}

		// replace the user-defined-language
		$oModuleController = &getController('module');
		$oModuleController->replaceDefinedLangCode($output);
	}

	/**
	 * when display mode is HTML, prepare code before print about <input> tag value.
	 * @param array $match input value.
	 * @return string input value.
	 **/
	function _preserveValue($match)
	{
		$INPUT_ERROR = Context::get('INPUT_ERROR');

		$str = $match[1].$match[2].' name="'.$match[3].'"'.$match[4];

		// get type
		$type = 'text';
		if(preg_match('/\stype="([a-z]+)"/i', $str, $m)) $type = strtolower($m[1]);

		switch($type){
			case 'text':
			case 'hidden':
				$str = preg_replace('@\svalue="[^"]*?"@', ' ', $str).' value="'.@htmlspecialchars($INPUT_ERROR[$match[3]]).'"';
				break;
			case 'password':
				$str = preg_replace('@\svalue="[^"]*?"@', ' ', $str);
				break;
			case 'radio':
			case 'checkbox':
				$str = preg_replace('@\schecked(="[^"]*?")?@', ' ', $str);
				if(@preg_match('@\s(?i:value)="'.$INPUT_ERROR[$match[3]].'"@', $str)) {
					$str .= ' checked="checked"';
				}
				break;
		}

		return $str.' />';
	}

	/**
	 * when display mode is HTML, prepare code before print about <select> tag value.
	 * @param array $matches select tag.
	 * @return string select tag.
	 **/
	function _preserveSelectValue($matches)
	{
		$INPUT_ERROR = Context::get('INPUT_ERROR');
		preg_replace('@\sselected(="[^"]*?")?@', ' ', $matches[0]);
		preg_match('@<select.*?>@is', $matches[0], $mm);

		preg_match_all('@<option[^>]*\svalue="([^"]*)".+</option>@isU', $matches[0], $m);

		$key = array_search($INPUT_ERROR[$matches[1]], $m[1]);
		if($key === FALSE)
		{
			return $matches[0];
		}
			
		$m[0][$key] = preg_replace('@(\svalue=".*?")@is', '$1 selected="selected"', $m[0][$key]);

		return $mm[0].implode('', $m[0]).'</select>';
	}

	/**
	 * when display mode is HTML, prepare code before print about <textarea> tag value.
	 * @param array $matches textarea tag information.
	 * @return string textarea tag
	 **/
	function _preserveTextAreaValue($matches)
	{
		$INPUT_ERROR = Context::get('INPUT_ERROR');
		preg_match('@<textarea.*?>@is', $matches[0], $mm);
		return $mm[0].$INPUT_ERROR[$matches[1]].'</textarea>';
	}

	/**
	 * add html style code extracted from html body to Context, which will be
	 * printed inside <header></header> later.
	 * @param array $matches
	 * @return void
	 **/
	function _moveStyleToHeader($matches) {
		Context::addHtmlHeader($matches[0]);
	}

	/**
	 * add meta code extracted from html body to Context, which will be
	 * printed inside <header></header> later.
	 * @param array $matches
	 * @return void
	 **/
	function _moveMetaToHeader($matches) {
		Context::addHtmlHeader($matches[0]);
	}

	/**
	 * add given .css or .js file names in widget code to Context
	 * @param array $matches
	 * @return void
	 **/
	function _transMeta($matches) {
		if($matches[1]) return '';
		Context::loadFile($matches[2]);
	}

	/**
	 * import basic .js files.
	 * @return void
	 **/
	function _loadJSCSS()
	{
		$oContext  =& Context::getInstance();
		$lang_type =  Context::getLangType();

		// add common JS/CSS files
		if(__DEBUG__) {
			$oContext->loadFile(array('./common/js/jquery.js', 'head', '', -100000), true);
			$oContext->loadFile(array('./common/js/x.js', 'head', '', -100000), true);
			$oContext->loadFile(array('./common/js/common.js', 'head', '', -100000), true);
			$oContext->loadFile(array('./common/js/js_app.js', 'head', '', -100000), true);
			$oContext->loadFile(array('./common/js/xml_handler.js', 'head', '', -100000), true);
			$oContext->loadFile(array('./common/js/xml_js_filter.js', 'head', '', -100000), true);
			$oContext->loadFile(array('./common/css/xe.css', 'all', '', -100000), true);
		} else {
			$oContext->loadFile(array('./common/js/jquery.min.js', 'head', '', -100000), true);
			$oContext->loadFile(array('./common/js/x.min.js', 'head', '', -100000), true);
			$oContext->loadFile(array('./common/js/xe.min.js', 'head', '', -100000), true);
			$oContext->loadFile(array('./common/css/xe.min.css', 'all', '', -100000), true);
		}

		// for admin page, add admin css
		if(Context::get('module')=='admin' || strpos(Context::get('act'),'Admin')>0){
			if(__DEBUG__) {
				$oContext->loadFile(array('./modules/admin/tpl/css/admin.css', 'all', '', 100000), true);
				$oContext->loadFile(array("./modules/admin/tpl/css/admin_{$lang_type}.css", 'all', '', 100000), true);
				$oContext->loadFile('./modules/admin/tpl/js/admin.js', true);
			} else {
				$oContext->loadFile(array('./modules/admin/tpl/css/admin.min.css', 'all', '', 100000), true);
				$oContext->loadFile(array("./modules/admin/tpl/css/admin_{$lang_type}.css", 'all', '',10000), true);
				$oContext->loadFile('./modules/admin/tpl/js/admin.min.js', true);
			}
		}
	}

	/**
	 * add meta tag.
	 * @return void
	 **/
	function _addMetaTag()
	{
		$oContext =& Context::getInstance();
		$oContext->addMetaTag('Content-Type', 'text/html; charset=UTF-8', true);
		$oContext->addMetaTag('imagetoolbar', 'no');
	}
}
